Hello friends... Need a minute of your precious time... I'm glad that my videos are really helpful for most of you people I'll try my best to post more videos consistently Comment any topics in which you are facing difficulty in understanding Or post any numerical problems in the comments so that I or someone else can help you in solving it.. And don't forget to subscribe to my channel to stay connected Make sure that you press the bell icon to get time to time updates... Thankyou :)
I am a final year honors degree electrical engineering student, and my final year project is to design and construct a cost effective 1kW dc to ac inverter with automatic switching function. I am in the early stages of my design, and this video has helped me a lot. It has made things that will be useful for my design known to me, and it has enhanced my basic knowledge of inverters. Thank you very much, Ma'am🤝.
thanks ma'am this was very helpful for me as my btech project is harmonic analysis of cascaded h bridge multilevel inverter😁 it helps me to understand the operation 😊
its such simple presentation that any one who wants to understand and thank you for that girl, but as we all know that inverter is conversion of dc to ac but u just get +vdc and -vdc which is not converted to ac u must show that how we get the Ac voltage like u used to get vdc, and how to mitigate the THD in the circuit...?... thanks.
Is it possible to read output voltage of MLI using multimeter ??? If we are using three dc source such as V , 2V , and 4V as input and output as 7V , so if 9v , 18v , 36v as input and output as 63v (AC) , but I am getting only 36V (AC) as output while checking in multimeter. So wheather it is working good or not , but in matlab simulation it shows 63V correctly.
Thank you mam for u r explanation ☺️ and can u pls tell me simulation of 9 level multilevel inverter using 7 switches and 3 diodes can u pls the switches operating system
can you share the paper links which you used in the video, and also make a video about filter designing for improving THE for low-level converter. thanks
thank's for the video, you have better explanation than my lecturer. can i ask you, would you mind give me your all learning material about MLI that you show in that video? it'll help me a lot
Do you have video explaining operation of multilevel flying capacitor inverter operates in especially how step voltages are implemented . This is poorly explained for 5 level multilevel inverter
hello maam, i want to know how can I set the values of CPS-SPWM in matlab for 19 levels or more. i used repeating sequence with not gate and relational operator. i am facing problem to set the output values of repeating sequence. kindly guide me about it. thanks
What is the exact problem u r facing with the output values? If it is the magnitude of repeating sequence it will be Vmax/9 where Vmax is the max value of the desired output voltage and value 9 comes from (level-1)/2 i.e. (19-1)/2=9
hello madam, at present i'm doing a project for my under graduation on this multilevel inverter concept. i'm done with a seven level inverter with pwm technique but my thd analysis shows more thd i.e., 32.4% which is not at all considered to be accepted i'm trying to reduce that harmonic distortions by changing the pwm technique to modified pwm or spwm technique. i need to solve this by this month end please help me in this project. i loved your explanation for this video. and pleaseing to to help me.
thank you for your fast response, and a complete confusion in types of pwm techniques that use different procedure like GENETIC ALGORITHM and Lshade-Espin algorithm . are they useful for me for my under graduation level?
You can find many types of algorithms if you search for IEEe research papers. Since power electronics and especially multilevel inverter is trending topic the number of algorithms and different types of topologies are increasing day by day. All you need to do is to select that particular topology and modulation technique(ofcourse which is simple) which gives you minimum THD. Techniques like Space vector modulation, SHPWM needs a lot of effort and is too much for BTech level. So choose a simpler one. Don't get confused with all those techniques at the last minute. Just take two-three days to decide which is best for you and work it out.
Thank you so much for this video! Can you tell me why there arent any 2nd order or 4th order harmonics? Why it is always multiple of 3? I am doing graduation in EE but sorry I am too noob lol
It is not multiple of 3... It is about even harmonics and odd harmonics. Consider a Sinewave. For fundamental waveform there is one positive halfcycle within pi. Whereas for 2nd harmonic there is one positive halfcycle and negative halfcycle and therefore cancels out each other(try to imagine the waveform). For third harmonic there are two positive halfcycles an one negative halfcycle. So still there is one positive halfcycle left out after cancellation. So in this way it continues for all other harmonics.finally all even harmonics are cancelled out and only odd harmonics are left out. In other way.... every random waveform can be represented by sinusoidal waveform using Fourier series. If you simplify that equation all the even terms get cancelled out and odd terms are left out. So there are only odd harmonics present in the circuit like 3,5,7,9....
@@letslearnelectricalenginee4671 Thank you so much. I dont think so I will learn everything soon, I am already in 3rd year :( It is not that I am a bad student, but my university sucks. Teachers make mistakes all the time and will not accept it. For example, all of them say that transmission conductors are stranded to reduce skin effect (i hope they are wrong or i will look like an idiot lol). This is just one example, they will show you slides on a projector and read it or at best, translate it from English to our language. Slides will clearly say "2008" and teacher will say its a new technology because it says it on a 10 years old file. Btw it is Mehran UET, Jamshoro, Pakistan. I wish to leave this place, but my education is simply preventing it lol. Can I really ask anything about topics in future that you havent even uploaded? Thank you so much Alkamie! Wish you luck in life.
Hello friends...
Need a minute of your precious time...
I'm glad that my videos are really helpful for most of you people
I'll try my best to post more videos consistently
Comment any topics in which you are facing difficulty in understanding
Or post any numerical problems in the comments so that I or someone else can help you in solving it..
And don't forget to subscribe to my channel to stay connected
Make sure that you press the bell icon to get time to time updates...
Thankyou :)
Madam I am unable to understand svpwm technique topic...
Thank you so much for this lovely and detailed Video...It helps me alot
Your explanation is really good, please also make videos to explain Digital electronics. It will help lot many electrical Engineers over here..!:)
I am a final year honors degree electrical engineering student, and my final year project is to design and construct a cost effective 1kW dc to ac inverter with automatic switching function. I am in the early stages of my design, and this video has helped me a lot. It has made things that will be useful for my design known to me, and it has enhanced my basic knowledge of inverters. Thank you very much, Ma'am🤝.
I am glad that it is helpful
Hello Ronny please can you share your project with me because I am doing same project in finalier major project . please 🙏
Very clear . Well presented.
Thankyou
We achieved 81 levels in our college project....Thanks you r doing nice job👍
Wowww👏🏼👏🏼👏🏼thats great
Im happy that it helped someone
Bhai sach bola ker iss video se tu nhi bana sqta 49level v .
Tu family and frnds hai na .....
Great explanation!
Thanku so much
thanks ma'am this was very helpful for me as my btech project is harmonic analysis of cascaded h bridge multilevel inverter😁
it helps me to understand the operation 😊
Great explanation with practical view point
Concept is very nicely explained
Thanku❤️
which type of motor is to be connected at the output of 21 level inverter
its such simple presentation that any one who wants to understand and thank you for that girl, but as we all know that inverter is conversion of dc to ac but u just get +vdc and -vdc which is not converted to ac u must show that how we get the Ac voltage like u used to get vdc, and how to mitigate the THD in the circuit...?... thanks.
your explanation is really very clear and make more videos related to current source inverter..
well explained mam got perfect idea about it
Thankyou☺️
Hello mam nice information
I want to ask latest which level inverter used we now a days
Is it possible to read output voltage of MLI using multimeter ???
If we are using three dc source such as V , 2V , and 4V as input and output as 7V , so if 9v , 18v , 36v as input and output as 63v (AC) , but I am getting only 36V (AC) as output while checking in multimeter. So wheather it is working good or not , but in matlab simulation it shows 63V correctly.
Very well explained. Keep it up
Thank you
Ur compliments mean a lot to me
Good explanation yaar and also ur voice is very cleared...
Thanku so much 😊
Good explanation
Thanku☺️
Thank you mam for u r explanation ☺️ and can u pls tell me simulation of 9 level multilevel inverter using 7 switches and 3 diodes can u pls the switches operating system
Mam 49 level multilevel inverter how many switches , source and diodes are used
can you share the paper links which you used in the video, and also make a video about filter designing for improving THE for low-level converter. thanks
thank's for the video, you have better explanation than my lecturer. can i ask you, would you mind give me your all learning material about MLI that you show in that video? it'll help me a lot
I selected this as my final year project, thanks to this video I was able to answer my supervisor's questions lol
Wowww
all the best for your project👍🏻
@@letslearnelectricalenginee4671 Thank you! Can you tell me the name of paper that you used at 7:00?
@@commandroid9336 it's not any published paper. It's my project
CommAndroid my final project also multilevel inverter. Perhaps we can share some input 🤗
@@letslearnelectricalenginee4671 Ok thanks dear, can you even share that? I am pretty sure your project is way helpful then my teachers lol
how to calculate total harmonic distortion theoretically?
Mam i need ur help for my project. Its 5 level MLI i can't find THD values exactly
U have problem with ur circuit or MATLAB??
@@letslearnelectricalenginee4671 Matlab
@@letslearnelectricalenginee4671 can u please say me the value of THD in 3level and 5level
maam explaination is very nice but plz be a little bit concious about the frame
Sure i will from next time
How did u managed to find out the THD of 9 level and 49 level inverter being 5... and 0.49 respectively? Were there any eqns to find the THD?
THD can be known from MATLAB simulation
can u plz provide the document that u used
Do you have video explaining operation of multilevel flying capacitor inverter operates in especially how step voltages are implemented . This is poorly explained for 5 level multilevel inverter
Can you please explain about a filter design for 5 level inverter so that the output remains sinusoidal for any type of load.
Very well explained , thank you
I'm glad that it helped u
hello maam, i want to know how can I set the values of CPS-SPWM in matlab for 19 levels or more. i used repeating sequence with not gate and relational operator. i am facing problem to set the output values of repeating sequence. kindly guide me about it. thanks
What is the exact problem u r facing with the output values? If it is the magnitude of repeating sequence it will be Vmax/9 where Vmax is the max value of the desired output voltage and value 9 comes from (level-1)/2 i.e. (19-1)/2=9
@@letslearnelectricalenginee4671 Can I have your email address? I will share my simulation model with you
Sorry, currently I dont have a system to open MATLAB
Ok thanks.
Thank u sister ur explaining it superly pls make more videos on electrical related topics 🙂
Thanks for watching
Please let me know which topics you want me to explain
I'll try my best to do...
What about video on types of feedback controller and its details
Do you mean PD PI PID controllers??
@@letslearnelectricalenginee4671 mmm yes if there any other controllers means that tooo
Accurate concept
hello madam, at present i'm doing a project for my under graduation on this multilevel inverter concept. i'm done with a seven level inverter with pwm technique but my thd analysis shows more thd i.e., 32.4% which is not at all considered to be accepted i'm trying to reduce that harmonic distortions by changing the pwm technique to modified pwm or spwm technique. i need to solve this by this month end please help me in this project. i loved your explanation for this video. and pleaseing to to help me.
Try to increase the number of levels by modifying your topology
There will be almost an exponential fall in THD value with increasing number of levels
thank you for your fast response, and a complete confusion in types of pwm techniques that use different procedure like GENETIC ALGORITHM and Lshade-Espin algorithm . are they useful for me for my under graduation level?
You can find many types of algorithms if you search for IEEe research papers. Since power electronics and especially multilevel inverter is trending topic the number of algorithms and different types of topologies are increasing day by day. All you need to do is to select that particular topology and modulation technique(ofcourse which is simple) which gives you minimum THD. Techniques like Space vector modulation, SHPWM needs a lot of effort and is too much for BTech level. So choose a simpler one.
Don't get confused with all those techniques at the last minute.
Just take two-three days to decide which is best for you and work it out.
@@nagasaidasari339 I will help
@@pavaninallanukala995 r u familiar with quasi z source
that was helpfull..
Thanku ❤️
Can you detail us on THDI for solar industry in specific and string inverter & central inverter selection procedure.
mam where we can get that book
Sorry which book?
Thank you 🙏
Thank you so much for this video! Can you tell me why there arent any 2nd order or 4th order harmonics? Why it is always multiple of 3? I am doing graduation in EE but sorry I am too noob lol
It's ok...
You'll learn everything soon
I'm there to help you
Feel free to share your doubts
It is not multiple of 3...
It is about even harmonics and odd harmonics.
Consider a Sinewave. For fundamental waveform there is one positive halfcycle within pi.
Whereas for 2nd harmonic there is one positive halfcycle and negative halfcycle and therefore cancels out each other(try to imagine the waveform). For third harmonic there are two positive halfcycles an one negative halfcycle. So still there is one positive halfcycle left out after cancellation. So in this way it continues for all other harmonics.finally all even harmonics are cancelled out and only odd harmonics are left out.
In other way....
every random waveform can be represented by sinusoidal waveform using Fourier series.
If you simplify that equation all the even terms get cancelled out and odd terms are left out.
So there are only odd harmonics present in the circuit like 3,5,7,9....
@@letslearnelectricalenginee4671 Wow it was easy to understand. Thank you so much, you explained it better than my teachers.
@@letslearnelectricalenginee4671 Thank you so much. I dont think so I will learn everything soon, I am already in 3rd year :( It is not that I am a bad student, but my university sucks. Teachers make mistakes all the time and will not accept it. For example, all of them say that transmission conductors are stranded to reduce skin effect (i hope they are wrong or i will look like an idiot lol). This is just one example, they will show you slides on a projector and read it or at best, translate it from English to our language. Slides will clearly say "2008" and teacher will say its a new technology because it says it on a 10 years old file. Btw it is Mehran UET, Jamshoro, Pakistan. I wish to leave this place, but my education is simply preventing it lol. Can I really ask anything about topics in future that you havent even uploaded? Thank you so much Alkamie! Wish you luck in life.
@@commandroid9336bro what you are doing now ? doing job or study?
Nice explanation . But one doubt i have
Yeah sure wat is it
How to pulse generate for all MOSFETs and how to control frequency and amplitude with it's maximum power
plz give switching table for 49 level
How to calculate the level?
U can identify it from the waveform obtained by counting the levels of the stepped waveform
sircute is very complex.
Nice
Thankyou
Plz do next video on combinàtion Wavelet's+Multilevel inverter
Mam can you send me pdf of whole materials I want to read it.
My Gmail is qaiserjavedofficial@gmail.com
what about five level inverter
In a 5level inverter the voltage has 5 levels V,V/2,0,-V/2,-V
The no. Of levels achieved is decided by the topology of your circuit.
Thank you mam
Glad that it is helpful😃
Nice explain...mam Tamil explain panna innum better ah irukum
Thanku
But Sorry Im from Andhra 😅
What about 13 level inverter
Same... it will have 6 positive levels, 0, 6 negative levels
Thanq u
👏👏👏
Can you contact me when you are online? Please
How can I help u??
Sory for the late response